Answer
Word population in 2040 = 1.32$\times10^{10}$
Work Step by Step
World population in 2017 = 6.6 $\times10^{9}$
Word population in 2040
= 2 $\times6.6 \times10^{9}$
= 13.2$\times10^{9}$
= 1.32$\times10^{10}$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter P - Summary, Review, and Test - Test - Page 92: 31
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